請問美國,日本同南韓飛機航空器註冊編號N/JA/HL字頭之後點解不用加-直接連住編號?

如題,謝謝解答!

Google 下先啦。

https://en.wikipedia.org/wiki/Aircraft_registration

When painted on the aircraft's fuselage, the prefix and suffix are usually separated by a dash (for example, YR-BMA). When entered in a flight plan, the dash is omitted (for example, YRBMA). In some countries that use a number suffix rather than letters, like the United States (N), South Korea (HL), and Japan (JA), the prefix and suffix are connected without a dash.